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/*
* The Python Imaging Library.
* $Id$
*
* declarations for the IJG JPEG codec interface.
*
* Copyright (c) 1995-2001 by Secret Labs AB
* Copyright (c) 1995-1996 by Fredrik Lundh
*/
#include "jpeglib.h"
#include <setjmp.h>
typedef struct {
struct jpeg_error_mgr pub; /* "public" fields */
jmp_buf setjmp_buffer; /* for return to caller */
} JPEGERROR;
/* -------------------------------------------------------------------- */
/* Decoder */
typedef struct {
struct jpeg_source_mgr pub;
int skip;
} JPEGSOURCE;
typedef struct {
/* CONFIGURATION */
/* Jpeg file mode (empty if not known) */
char jpegmode[8+1];
/* Converter output mode (input to the shuffler). If empty,
convert conversions are disabled */
char rawmode[8+1];
/* If set, trade quality for speed */
int draft;
/* Scale factor (1, 2, 4, 8) */
int scale;
/* PRIVATE CONTEXT (set by decoder) */
struct jpeg_decompress_struct cinfo;
JPEGERROR error;
JPEGSOURCE source;
} JPEGSTATE;
/* -------------------------------------------------------------------- */
/* Encoder */
typedef struct {
struct jpeg_destination_mgr pub;
/* might add something some other day */
} JPEGDESTINATION;
typedef struct {
/* CONFIGURATION */
/* Quality (1-100, 0 means default) */
int quality;
/* Progressive mode */
int progressive;
/* Smoothing factor (1-100, 0 means none) */
int smooth;
/* Optimize Huffman tables (slow) */
int optimize;
/* Stream type (0=full, 1=tables only, 2=image only) */
int streamtype;
/* DPI setting (0=square pixels, otherwide DPI) */
int xdpi, ydpi;
/* Chroma Subsampling (-1=default, 0=none, 1=medium, 2=high) */
int subsampling;
/* Custom quantization tables () */
unsigned int *qtables;
/* in factors of DCTSIZE2 */
int qtablesLen;
/* Extra data (to be injected after header) */
char* extra; int extra_size;
/* PRIVATE CONTEXT (set by encoder) */
struct jpeg_compress_struct cinfo;
JPEGERROR error;
JPEGDESTINATION destination;
int extra_offset;
int rawExifLen; /* EXIF data length */
char* rawExif; /* EXIF buffer pointer */
} JPEGENCODERSTATE;